15-letter words containing s, h, y, l, o
- untrustworthily — in an untrustworthy manner; not trustworthily
- washington lily — a lily, Lilium washingtonianum, of the western coast of the U.S., having whorled leaves and fragrant, purple-spotted white flowers.
- winter holidays — a period of rest from work or studies taken in winter
- yellow goatfish — a schooling goatfish, Mulloidichthys martinicus, inhabiting the Atlantic Ocean from Florida to Panama.
- yin-yang school — a school of ancient Chinese philosophers who interpreted history in terms of the influence of the seasons and of five elements: earth, wood, metal, fire, and water.
- yorkshire dales — the valleys of the rivers flowing from the Pennines in W Yorkshire: chiefly Ribblesdale, Swaledale, Nidderdale, Wharfedale, and Wensleydale; tourist area
- zoophysiologist — an expert in zoophysiology
- zygophyllaceous — belonging to the Zygophyllaceae, the caltrop family of plants.